Remove Default Male Gender Option

When adding a new actor/actress to IMDb, the radio button has "Actor" preselected. 

I'm finding quite often, some contributors (most likely inadvertently) aren't changing the radio button to "actress" when needed.

This results in a female actress being listed as a male actor. I've also found that submitting an actress credit to someone who has been designated initially (in error) as an actor will invariably be rejected (despite ticking the box to confirm that I acknowledge that the person only has credits as an actor).

It is now incredibly difficult to change an actor to an actress without proof that really only the actress concerned would have.

To alleviate this, could consideration be given to leave the radio button empty and upon submission, force a contributor to choose an option if it has been left unticked.

It probably would be a good idea to add "Non-Binary" or similar to the radio button options whilst implementing this change.